StackOne

About StackOne

StackOne is a universal integration layer for modern products, providing a platform that enables seamless integrations for SaaS products and AI agent actions. Their mission is to break the limits of unified API platforms, helping companies deliver native integrations at scale, save engineering resources, build better products with real-time data access, and grow sales by meeting customer needs.

Products & Services

Unified APIs:A platform for SaaS products to integrate with over 200 enterprise SaaS applications in real-time, supporting read and write operations.

AI Agent Interfaces:Offers thousands of AI-ready actions compatible with frameworks like MCP, Langchain, and OpenAI, designed for enterprise use with high accuracy in tool-calling.

Authentication UI:Pre-built, brandable authentication screens for various integration types (OAuth, OIDC, keys) with connection guides for faster onboarding.

Real-Time Engine:A proprietary architecture for real-time API translations and webhooks (native and synthetic) without data sync delays.

Enterprise-Ready Features:Includes privacy-first design with no PII storage, hybrid deployment options, multi-region support, and compliance with SOC-2, GDPR, CCPA, and HIPAA.

Specialties

Integration Platforms Unified APIs AI Agent Actions Real-Time Data Access Enterprise SaaS Integrations

Funding History

Debug: View Raw Funding Data

#	Type	Amount Fields	Date Fields	Investors
1	RT: Series A T: - FT: Series A	A: 20000000 MR: - FA: $20 million FAN: 20000000	D: 2025-05-06 FD: 2025-05-06	6 investors
2	RT: Seed T: - FT: Seed	A: 3600000 MR: - FA: 3.6 million FAN: 3600000	D: 2024-03-05 FD: 2024-03-05	6 investors

Series A Latest

2025-05-06

$20.0M

6 investors (Pro only)

Seed 2024-03-05

$3.6M

View 1 more funding rounds with Pro

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Growth Metrics

+45%

Employee Growth

YoY

3.2x

Funding Growth

Last Round

12

Markets

Operating

10K+

Customers

Active

View 3 more growth metrics with Pro

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Mock Up

Team & Leadership

R

Romain Sestier

Co-Founder & CEO

LinkedIn (Pro only)

G

Guillaume Lebedel

Co-Founder & CTO

LinkedIn (Pro only)

Recent News

StackOne Announces New Product Launch

2 days ago

Company unveils innovative solution to transform the industry, expanding market reach and capabilities...

Leadership Team Expands with Industry Veteran

1 week ago

New executive brings 20+ years of experience to accelerate growth and strategic initiatives...

Company Recognized as Industry Leader

2 weeks ago

Receives prestigious award for innovation and customer satisfaction in competitive market...

Key Competitors

C1

Competitor Alpha

Series B · $50M raised

C2

Competitor Beta

Series C · $120M raised

C3

Competitor Gamma

Series A · $25M raised

C4

Competitor Delta

Seed · $10M raised